needhelpfastplease Group Title A student pushes a 40-N block across the floor for a distance of 10 m. How much work was applied to move the block? A. 4 J B. 40 J C. 400 J D. 4000 J 4 months ago 4 months ago

1. timaashorty Group Title

2. kym02 Group Title

I think it's also C because work=force x distance.

3. theEric Group Title

Right! Because the force and displacement are in the same exact direction, you can use that formula.

:) You're welcome! More generally, $$\large W=F\dot\ d\dot\ \cos(\theta)$$ where $$\theta$$ is the angle between force and displacement. You can see that, when they're in the same direction, $$\theta=0$$ $$\implies W=F\dot\ d\dot\ \cos(0)=F\dot\ d\dot\ 1=F\dot\ d$$